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Analysis
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max time kernel
144s -
max time network
132s -
platform
windows7_x64 -
resource
win7-20240708-en -
resource tags
arch:x64arch:x86image:win7-20240708-enlocale:en-usos:windows7-x64system -
submitted
25/12/2024, 00:38
Static task
static1
Behavioral task
behavioral1
Sample
JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Resource
win7-20240708-en
Behavioral task
behavioral2
Sample
JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Resource
win10v2004-20241007-en
General
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Target
JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
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Size
833KB
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MD5
879fe8251f7e362c8b786a1a1d03586c
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SHA1
2dc5de3cee375f4630e4d70ee371523e93c36f01
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SHA256
6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7
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SHA512
fc46f174dcde80fe8a4341c778e6dd2d2b7c32cdf8a3cfedc24b88b63dd8ee36d89cae9986d02980ce55c68fa3f282a86d093825ca5fa20bb1879eacadbac70e
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SSDEEP
24576:a4OqOuOCUS9cCh+goT9zxRA0EtQflzp9FEitw:aYUe3UgoT9PAbE79FEd
Malware Config
Extracted
djvu
http://fuyt.org/lancer/get.php
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extension
.gtys
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offline_id
qwVQoIsE2xLety0oNWloOilSDuIBXJGK86LM3ot1
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payload_url
http://zerit.top/dl/build2.exe
http://fuyt.org/files/1/build3.exe
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ransomnote
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Signatures
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Detected Djvu ransomware 15 IoCs
resource yara_rule behavioral1/memory/2184-4-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/1780-5-0x0000000001EA0000-0x0000000001FBB000-memory.dmp family_djvu behavioral1/memory/2184-8-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2184-9-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2184-29-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-39-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-38-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-55-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-54-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-57-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-61-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-73-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-70-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-72-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu behavioral1/memory/2600-74-0x0000000000400000-0x0000000000537000-memory.dmp family_djvu -
Djvu Ransomware
Ransomware which is a variant of the STOP family.
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Djvu family
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Modifies file permissions 1 TTPs 1 IoCs
pid Process 2812 icacls.exe -
Adds Run key to start application 2 TTPs 1 IoCs
description ioc Process Set value (str) \REGISTRY\USER\S-1-5-21-3551809350-4263495960-1443967649-1000\Software\Microsoft\Windows\CurrentVersion\Run\SysHelper = "\"C:\\Users\\Admin\\AppData\\Local\\fb5c15a6-2c22-4b4f-a9b0-2c8b7b5eec3a\\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe\" --AutoStart" JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe -
Looks up external IP address via web service 3 IoCs
Uses a legitimate IP lookup service to find the infected system's external IP.
flow ioc 3 api.2ip.ua 4 api.2ip.ua 9 api.2ip.ua -
Suspicious use of SetThreadContext 2 IoCs
description pid Process procid_target PID 1780 set thread context of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 2744 set thread context of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 -
Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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System Location Discovery: System Language Discovery 1 TTPs 5 IoCs
Attempt gather information about the system language of a victim in order to infer the geographical location of that host.
description ioc Process Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language icacls.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe Key opened \REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe -
Suspicious behavior: EnumeratesProcesses 4 IoCs
pid Process 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 2600 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 2600 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe -
Suspicious use of WriteProcessMemory 30 IoCs
description pid Process procid_target PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 1780 wrote to memory of 2184 1780 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 31 PID 2184 wrote to memory of 2812 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 32 PID 2184 wrote to memory of 2812 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 32 PID 2184 wrote to memory of 2812 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 32 PID 2184 wrote to memory of 2812 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 32 PID 2184 wrote to memory of 2744 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 33 PID 2184 wrote to memory of 2744 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 33 PID 2184 wrote to memory of 2744 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 33 PID 2184 wrote to memory of 2744 2184 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 33 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34 PID 2744 wrote to memory of 2600 2744 JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe 34
Processes
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:1780 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"2⤵
- Adds Run key to start application
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of WriteProcessMemory
PID:2184 -
C:\Windows\SysWOW64\icacls.exeicacls "C:\Users\Admin\AppData\Local\fb5c15a6-2c22-4b4f-a9b0-2c8b7b5eec3a" /deny *S-1-1-0:(OI)(CI)(DE,DC)3⤵
- Modifies file permissions
- System Location Discovery: System Language Discovery
PID:2812
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C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe" --Admin IsNotAutoStart IsNotTask3⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious use of WriteProcessMemory
PID:2744 -
C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe"C:\Users\Admin\AppData\Local\Temp\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe" --Admin IsNotAutoStart IsNotTask4⤵
- System Location Discovery: System Language Discovery
- Suspicious behavior: EnumeratesProcesses
PID:2600
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Network
MITRE ATT&CK Enterprise v15
Replay Monitor
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Downloads
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Filesize
1KB
MD567e486b2f148a3fca863728242b6273e
SHA1452a84c183d7ea5b7c015b597e94af8eef66d44a
SHA256facaf1c3a4bf232abce19a2d534e495b0d3adc7dbe3797d336249aa6f70adcfb
SHA512d3a37da3bb10a9736dc03e8b2b49baceef5d73c026e2077b8ebc1b786f2c9b2f807e0aa13a5866cf3b3cafd2bc506242ef139c423eaffb050bbb87773e53881e
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Filesize
436B
MD5971c514f84bba0785f80aa1c23edfd79
SHA1732acea710a87530c6b08ecdf32a110d254a54c8
SHA256f157ed17fcaf8837fa82f8b69973848c9b10a02636848f995698212a08f31895
SHA51243dc1425d80e170c645a3e3bb56da8c3acd31bd637329e9e37094ac346ac85434df4edcdbefc05ae00aea33a80a88e2af695997a495611217fe6706075a63c58
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\8B2B9A00839EED1DFDCCC3BFC2F5DF12
Filesize174B
MD5071f6c96cd38ea431e1154891758d965
SHA1ec125b460ecc9af8046b3d7e22c7ab8ff799b2a1
SHA2569f983c1b45c671775ae04c5206557c7387034b292b1d6daeeeed2f1d7fade529
SHA512c7673731165aebce8e89e07fc5ed9ea3b7a0f96bf8c32869faa0f8935a839fae4579379e3398b363f3d28fa16d1c49efff205bc4e88436b0975dc00d37737963
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\94308059B57B3142E455B38A6EB92015
Filesize342B
MD5064111d4c0431099f9ba7fc2932216ea
SHA1b02bed6452324f3a5c87815c6df7ec2d2b15827d
SHA256e0f6ac95ac1fe746ddaeddc61ced5e01add5622b85e1b254c8c9b01059b7bee3
SHA51212190c5423c9959ea2f884c0d192536fcea8c47415f8f06e7342b19fa5928dd54cfd3e1e98943101d6ae1d9a1152b721c38222855d123b5d5c59cb46deee14b2
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C:\Users\Admin\AppData\LocalLow\Microsoft\CryptnetUrlCache\MetaData\B46811C17859FFB409CF0E904A4AA8F8
Filesize170B
MD58737f283051a32effb1bf8cc01eb5b50
SHA1602a9f8a93c0e0befd4a86e5d5ca0a3e9b549bc9
SHA256674dbc8694b236d8a97460861cc1542b46234f434a699b6ad0ef3d19b1d1faec
SHA51225b7c867cdc8f8b0a599121fc7329c92209d03f5f7e6502809224d98e76057b9d9589bfd1c7602b04eee42812e2db2f2f05ff81f8f5241b222a8e222397cf541
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Filesize
70KB
MD549aebf8cbd62d92ac215b2923fb1b9f5
SHA11723be06719828dda65ad804298d0431f6aff976
SHA256b33efcb95235b98b48508e019afa4b7655e80cf071defabd8b2123fc8b29307f
SHA512bf86116b015fb56709516d686e168e7c9c68365136231cc51d0b6542ae95323a71d2c7acec84aad7dcecc2e410843f6d82a0a6d51b9acfc721a9c84fdd877b5b
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C:\Users\Admin\AppData\Local\fb5c15a6-2c22-4b4f-a9b0-2c8b7b5eec3a\JaffaCakes118_6390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7.exe
Filesize833KB
MD5879fe8251f7e362c8b786a1a1d03586c
SHA12dc5de3cee375f4630e4d70ee371523e93c36f01
SHA2566390fa58f057c07b623dcfe73a9cf1d79a327e486351aee910d1aa5bd058bfe7
SHA512fc46f174dcde80fe8a4341c778e6dd2d2b7c32cdf8a3cfedc24b88b63dd8ee36d89cae9986d02980ce55c68fa3f282a86d093825ca5fa20bb1879eacadbac70e